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72271 (2001 AS42)
Classification: Main-belt Asteroid          SPK-ID: 2072271
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1235026055617936 3.9223e-08  
a 2.256710434170358 7.4264e-09 au
q 1.978000815551832 8.7108e-08 au
i 7.540550779900648 3.9745e-06 deg
node .2519875602064959 2.9222e-05 deg
peri 354.81079333 3.3215e-05 deg
M 62.04383596925815 1.7041e-05 deg
tp 2458987.093166195228
(2020-May-17.59316620)
5.8324e-05 TDB
period 1238.260964518447
3.39
6.1123e-06
1.673e-08
d
yr
n .2907303147846561 1.4351e-09 deg/d
Q 2.535420052788884 8.3435e-09 au
  Orbit Determination Parameters
   # obs. used (total)      981  
   data-arc span      8919 days (24.42 yr)  
   first obs. used      1996-09-10  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51223  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:01:08  

Additional Information
 Earth MOID = .971833 au 
 Jupiter MOID = 2.88949 au 
 T_jup = 3.601 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.85   n/a E2021B10  

72271 (2001 AS42)          Discovered 2001-Jan-04 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 AS42 = 1998 HY42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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